"Not to be outdone by their husbands, the first ladies are getting their chance to shine on the nation's coins. Starting next year, Martha Washington, Abigail Adams and all the rest will begin appearing on a new series of gold coins.

While a new presidential series will be $1 circulating coins, the wives will be on half-ounce gold coins with each likely to sell for more than $300.

Both coins were authorized by Congress in 2005 with lawmakers modeling the $1 coin series after the Mint's extremely popular 50-state quarters.

The hope is that changing the images on the presidential coins every three months will spur greater interest and help the maligned dollar coin finally achieve acceptance with Americans. The Susan B. Anthony dollar, introduced in 1979, and the Sacagewea, introduced in 2000, have both been flops."